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Effect of Laser Texturing of Substrate Surface on Coating Properties of Cold-Sprayed and Laser-Assisted Cold-Sprayed Aluminum Coatings

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publicationITSC2019 - Proceedings of the International Thermal Spray Conference
EditorsF. Azarmi, Y. Lau, J. Veilleux, C. Widener, F. Toma, H. Koivuluoto, K. Balani, H.I. Li, K. Shinoda
PublisherASM International, Materials Park, OH
ISBN (Electronic)978-1-62708-242-6
Publication statusPublished - 2019
Publication typeA4 Article in a conference publication
EventInternational Thermal Spray Conference and Exposition, ITSC2019: New Waves of Thermal Spray Technology for Sustainable Growth - Pacifico Yokohama, Yokohama, Japan
Duration: 26 May 201929 May 2019

Publication series

NameProceedings of the International Thermal Spray Conference
ISSN (Print)1341-3074


ConferenceInternational Thermal Spray Conference and Exposition, ITSC2019
Abbreviated titleITSC2019


Cold spraying has shown its potential to produce aluminum coatings with sufficient technical properties. Aluminum and its alloys have superior properties, e.g., lightness, corrosion protection, thermal and electrical conductivity. Therefore, they are often used in the aerospace industry, electrical engineering and repairing. Coating properties can further be improved by substrate pre-treatments and by process assistance during the coating formation. As illustration, laser treatments have been tested. This study focuses on the effect of laser texturing of the substrate surface as the pre-treatment and laser-assisted cold spraying as the process assisting method on coating properties such as microstructure, hardness, adhesion and deposition efficiency. Aluminum coatings were sprayed on aluminum and low carbon steel substrates in order to perceive the influence of material combinations. Improvement was detected with the optimal combination of laser texturing and process assistance, showing denser and tighter bonded coatings. Beneficially, interfaces between these coatings and substrates were cleaner than that of grit-blasted substrates.

Publication forum classification

Field of science, Statistics Finland